The thing that is most fascinating, is that she basically said, "I like your idea, but your execution sucks". That is the pinnacle of the most painful thing to hear, but the CEO took it in stride and made his product better.
That is the lesson I am going to take away. Ideas matter, but if execution is the thing you can change, then embrace the people that tell you your execution sucks and have ideas.
I can see the analogy, although I'm not convinced it holds up. But the flip-side is, and I think this is important to understand, a lot of the "techniques" used by PUAs aren't things they invented, but rather things they borrowed from material on salesmanship and persuasion.
Robert Cialdini, for example, is heavily cited as an influence within the PUA community. So calling a "neg" a "pickup technique" might not even be accurate. I imagine the idea of "lower the value of a high-value target to penetrate their shield" probably predates the term PUA by quite some time.
That is the lesson I am going to take away. Ideas matter, but if execution is the thing you can change, then embrace the people that tell you your execution sucks and have ideas.